# Word Swap on input?

**URL:** <https://forum.universal-robots.com/t/word-swap-on-input/19722>\
**Category:** Technical Questions\
**Created:** [March 7, 2022, 3:01pm UTC](https://forum.universal-robots.com/t/word-swap-on-input/19722 "2022-03-07T15:01:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![anon27750506](https://avatars.discourse-cdn.com/v4/letter/a/f0a364/32.png) [@anon27750506](https://forum.universal-robots.com/u/anon27750506)\
**Post date:** [March 7, 2022, 3:01pm UTC](https://forum.universal-robots.com/t/word-swap-on-input/19722/1 "2022-03-07T15:01:02Z")

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Hi

I am controlling a UR Robot from a Siemens S7 PLC via Profinet.

When I send Dint value 1 from PLC to UR Robot, using UR\_O2T Int register, the robot receives value 65564.

This is something that suddenly changed. Earlier I got the right value.

Is there some input setting that I could have changed by mistake?

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<div class="post-metadata">

**Author:** ![anon27750506](https://avatars.discourse-cdn.com/v4/letter/a/f0a364/32.png) [@anon27750506](https://forum.universal-robots.com/u/anon27750506)\
**Post date:** [March 8, 2022, 6:15am UTC](https://forum.universal-robots.com/t/word-swap-on-input/19722/2 "2022-03-08T06:15:12Z")

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Found out it was because addressing of input and output on the PLC Tags had shifted. 🙃